Bicycle flex stay



FIG. 1 is a top, front, and right side perspective view of a bicycle flex stay embodying our new design;

FIG. 2 is a bottom, rear, and left side perspective view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a front elevation view thereof;

FIG. 7 is a top plan view thereof;

FIG. 7A is a top plan view thereof, in which the environmental broken line showing of the top seat stay has been omitted to provide a complete view;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is a left side elevation view thereof, when attached to and shown as part of an exemplary bicycle frame.

The broken lines in the figures showing additional portions of a bicycle frame depict the environment in which the claimed bicycle flex stay is used and form no part of the claimed design. 

CLAIM The ornamental design for a bicycle flex stay, substantially as shown and described. 